Charge, current and potential difference

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Question 6
Easy

A boat owner installs four electrical devices connected to a 12 V auxiliary battery.

Each device is connected in parallel with its own switch and its own fuse as shown in Figure 1.

The normal operating current for each device is shown next to it.

Figure 1: Schematic diagram of a marine electrical system showing four parallel branches connected to a 12 V leisure battery. Each branch contains a fuse, a switch, and one of the following devices with its operating current: LED Cabin Lights (800 mA), Water Pump (6.2 A), Bilge Fan (2.4 A), and GPS Navigator (1.1 A).

Calculate the total current in the main wires to the battery when all four devices are switched on simultaneously.

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Charge, current and potential difference Questions

  1. GCSE
  2. /Physics
  3. /Charge, current and potential difference